The Damped Lyman-alpha System -- Galaxy Connection: Clues from Local HI Galaxy Surveys

Details The Damped Lyman-alpha System -- Galaxy Connection: Clues from Local HI Galaxy Surveys The Damped Lyman-alpha System -- Galaxy Connection: Clues from Local HI Galaxy Surveys

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006noao.prop..165e&link_type=abstract

NOAO Proposal ID #2006B-0165

Computer Science

Scientific paper

Damped Lyman-alpha systems (DLAs) trace the evolution of gas in galaxies. However, whilst almost every theoretical model of chemical evolution predicts that DLA metallicities should reach solar at z=0, observed values are barely 1/10 this value. One explanation for this is that the HI cross-section of the gas-rich galaxy population is not dominated by solar metallicity gas. We propose to use the relationship between stellar mass and metallicity to make an estimate of the HI cross- section weighted metallicity for a sample of local analogs to the DLA population. To achieve this, we need J, H and K-band observations to determine galactic stellar masses for the last 10 galaxies in our complete sample which do not appear in the 2MASS survey and which could not be scheduled in 2006A.

Affiliated with

Also associated with

No associations

Rating

The Damped Lyman-alpha System -- Galaxy Connection: Clues from Local HI Galaxy Surveys does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Damped Lyman-alpha System -- Galaxy Connection: Clues from Local HI Galaxy Surveys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Damped Lyman-alpha System -- Galaxy Connection: Clues from Local HI Galaxy Surveys will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1104441